sysdeps/powerpc/powerpc64/fpu/multiarch/s_isnanf.c

   1 /* Multiple versions of isnan.
   2    Copyright (C) 2013-2015 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <math.h>
  20 #include "init-arch.h"
  21
  22 /* The double-precision implementation also works for the single one.  */
  23 extern __typeof (__isnanf) __isnan_ppc64 attribute_hidden;
  24 extern __typeof (__isnanf) __isnan_power5 attribute_hidden;
  25 extern __typeof (__isnanf) __isnan_power6 attribute_hidden;
  26 extern __typeof (__isnanf) __isnan_power6x attribute_hidden;
  27 extern __typeof (__isnanf) __isnan_power7 attribute_hidden;
  28 extern __typeof (__isnanf) __isnan_power8 attribute_hidden;
  29
  30 libc_ifunc (__isnanf,
  31             (hwcap2 & PPC_FEATURE2_ARCH_2_07)
  32             ? __isnan_power8 :
  33               (hwcap & PPC_FEATURE_ARCH_2_06)
  34               ? __isnan_power7 :
  35                 (hwcap & PPC_FEATURE_POWER6_EXT)
  36                   ? __isnan_power6x :
  37                   (hwcap & PPC_FEATURE_ARCH_2_05)
  38                     ? __isnan_power6 :
  39                     (hwcap & PPC_FEATURE_POWER5)
  40                       ? __isnan_power5
  41             : __isnan_ppc64);
  42
  43 weak_alias (__isnanf, isnanf)